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How to adjust the pressure and displacement of the hydraulic piston pump?
1. Adjust the displacement of the pump: The larger the displacement of the hydraulic piston pump, the greater the flow and pressure. The displacement can be adjusted by replacing the displacement of the pump or adjusting the eccentricity distance of the pump.
2. Adjust the valves in the hydraulic system: The valves in the hydraulic system can control the flow and pressure.
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Bosch Rexroth: a dual powerhouse in the field of copy cutting
For the field of profiling cutting, there is a growing demand to increase productivity and shorten set-up times and CNC interpolation time. The Bosch Rexroth MTX CNC system provides the perfect basis for machine builders and users to meet the growing challenges and at the same time comply with the requirements of the OPC UA standard for Industry 4.0 communication ...
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The first flushing step of the hydraulic system of the Rexroth Rexroth hydraulic pump
First wash. The first cleaning of the hydraulic system of the Rexroth Rexroth hydraulic pump is carried out after the pre-installation (trial assembly of the pipes) and the dismantling of the entire pipeline.
The first cleaning should ensure that a large number of metal burrs and powders, sand dust, ...
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The solution to the forward rush of the throttle speed control valve of Rexroth vane pump
1. Adopt the correct Rexroth vane pump speed conversion method, the conversion mode of the solenoid valve, the impact is larger, the conversion accuracy is lower, the reliability is poor, but the control flexibility is large;
2. The electro-hydraulic reversing valve uses a current valve with damping, and by adjusting the damping size, the Rexroth blades ...
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Rexroth hydraulic pumps – use, repair and assembly of gear pumps
1. What should I pay attention to when using a gear pump?
(1) The oil suction height of the gear pump shall generally not be greater than 500mm.
(2) The gear pump should be directly connected with the motor through the flexible coupling, generally not rigidly connected or connected with the power source through the gear pair and belt mechanism, so as to avoid unilateral force, ...
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How many ways are there to control the displacement of Rexroth variable piston pumps?
1. Guiding ideology:
1. The pressure depends on the load oil pump, and the output pressure is inversely proportional to the flow rate. In the state of electronic control, when the external load increases, the system pressure increases, when the system pressure increases, the pressure of the front pump oil flow and the rear pump oil flow into the rear pump increases, and the computer detects the ...
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A common series of Rexroth oil pumps
1. Rexroth hydraulic piston pump A10VsO series: A10VsO18, A10VsO28, A10VsO45, A10VsO71, A10VsO100, A10VsO140
2. Rexroth hydraulic piston pump A10VO series: A10VO28, A10VO45, A10VO71, A10VO100, A10VO140
3 ...
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Rexroth's intelligent press-fit function kit is plug-and-play
The automotive industry expects more support from suppliers in quality assurance for assembly work. As a result, suppliers in the automotive industry are looking to automation partners to better meet this technology demand while delivering faster. Mechanical engineering companies need more applications in standard tasks ...
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What do I need to pay attention to when assembling a Rexroth gear oil pump?
(1) Remove the burrs from each part. The sharp edge of the gear is poured with natural oil stone, but not into a fillet. The parts after flat grinding should be demagnetized, and all parts should be carefully cleaned with kerosene before they can be put into assembly.
(2) Measure and ensure the axial clearance during assembly: Rexroth gear oil pump axial ...
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Rexroth hydraulic pump - common faults and solutions of hydraulic pumps
1. The hydraulic oil pump cannot absorb oil or have no pressure.
Causes
1. The rotation direction of the prime mover and the oil pump is inconsistent.
Cleaning method: correct the rotation direction of the prime mover.
2. The oil pump transmission key falls off.
Elimination: De novo transmission key.
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Basic understanding of Rexroth solenoid valves
Technical Parameters:
1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode;
2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter;
3) Working Differential Pressure: Low working differential pressure above 0.04Mpa is optional.
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Analysis of the fault phenomenon and causes of Rexroth hydraulic oil pump
1. Check the internal leakage of the boom cylinder. The easiest way to do this is to raise the boom and see if it has a noticeable free descent. If the drop is obvious, disassemble the cylinder for inspection, and replace the sealing ring if it is worn;
2. Check the control valve. First of all, clean the safety valve and check whether the valve core is grinding.
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Rexroth pressure reducing valve main types and technical parameters description
1. Pressure reducing and stabilizing valve
Main features: 1. Piston type with DN65 caliber or above. The life of the diaphragm is increased by more than 3 times; 2. Below DN50 caliber, the original diaphragm is replaced by a flat diaphragm of nylon reinforced rubber, which also improves the service life by more than 3 times. Applicable medium: water, air. Medium temperature ...
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Rexroth hydraulic pump - vane pump heating fault causes and solutions
Analysis of abnormal heating fault of vane pump:
1. The oil temperature is too high 2. The oil cat degree is too large and the internal leakage is too large
3. The working pressure is too high
4. The oil return port is directly connected to the pump population
Abnormal heating elimination method of vane pump:
1. Improve the heat dissipation conditions of the fuel tank or use cooling ...
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Rexroth's view of automation trends: Leading the new trend of automation: freedom and openness for all
· Integrate know-how from all parties through an ecosystem
· Low-code/no-code: Five times faster time to market
· Independence from global supply chains
· Long-term availability
The industrial automation transformation is well underway and will take a big step forward in 2022.
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Rexroth Hydraulic Pumps – Oil trapping and radial forces in gear pumps
During the meshing process of the gear pump, the number of gear pairs meshed at the same time should be more than one pair, that is, the overlap coefficient ε should be greater than 1 (ε=1.4) to work normally. The oil left between the teeth is trapped in an enclosed space formed by two pairs of teeth meshing at the same time, and the volume of this space will be ...
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Causes, hazards and prevention methods of particle contamination in Rexroth piston pumps
Cause:
There are two causes of particle contamination: one is brought in from the outside, and the other is generated during the work process.
Atmospheric dust is brought in through the vents of the tank.
Mixing during storage and transportation.
Sludge and sediment resulting from chemical changes.
Exist...
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Rexroth servo valve debugging method
The first step is the debugging of the zero position in the no-load state
Most of the servo valves on construction machinery are used in conjunction with the reversing valve to achieve the purpose of controlling the hydraulic system. The servo valve plug-in can be unplugged on the site to prevent the servo valve from being energized and make it in a no-load state. Then, a manual or electric directional valve, ...
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Rexroth variable hydraulic pump pressure flow adjustment steps
1. First of all, adjust the pressure adjustment screw of Rexroth variable hydraulic pump relief valve to the loosest state, adjust the minimum flow limiter to the minimum state (the upper hydraulic cylinder adjusting screw is adjusted to the loosest state), adjust the flow control valve adjusting screw to the tightest state, and connect a flow rate in series after the relief valve.
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Technical parameters and environmental conditions of Rexroth solenoid valves
Technical parameters
1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode;
2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter;
3) Working pressure difference: The minimum working pressure difference is above 0.04Mpa.
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